ES8402386A1 - Perfeccionamientos en un dispositivo para gobernar la carrera de un grupo de cilindros de un sistema de entibacion hidraulico. - Google Patents

Perfeccionamientos en un dispositivo para gobernar la carrera de un grupo de cilindros de un sistema de entibacion hidraulico.

Info

Publication number
ES8402386A1
ES8402386A1 ES521275A ES521275A ES8402386A1 ES 8402386 A1 ES8402386 A1 ES 8402386A1 ES 521275 A ES521275 A ES 521275A ES 521275 A ES521275 A ES 521275A ES 8402386 A1 ES8402386 A1 ES 8402386A1
Authority
ES
Spain
Prior art keywords
valve
hydraulic pressure
props
supply line
closure element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES521275A
Other languages
English (en)
Other versions
ES521275A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of ES521275A0 publication Critical patent/ES521275A0/es
Publication of ES8402386A1 publication Critical patent/ES8402386A1/es
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/26—Hydraulic or pneumatic control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7905—Plural biasing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Safety Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

DISPOSITIVO PARA GOBERNAR LA CARRERA DE UN GRUPO DE CILINDROS DE UN SISTEMA DE ENTIBACION HIDRAULICO, ESPECIALMENTE PARA AFIRMAR LOS ESTEMPLES DE UNA UNIDAD DE ENTIBACION PROGRESIVA. CONSTA DE UN DISPOSITIVO DE VALVULA DE MANIOBRA QUE ES COMUN PARA TODOS LOS CILINDROS DE TRABAJO (3) Y QUE ESTA CONECTADA, EN SU LADO DE ENTRADA, A LA TUBERIA DE PRESION DE SERVICIO Y, EN SU LADO DE SALIDA, ESTA CONECTADA, A TRAVES DE TU8BERIAS DE ENTRADA, A LAS CAMARAS DE PRESION DE LOS DIFERENTES CILINDROS DE TRABAJO (3); DE UNA VALVULA DE COMPENSACION (10) DISPUESTA EN UNO DE LOS CILINDROS DE TRABAJO (3), LA CUAL NO ABRE LA ENTRADA AL O A LOS CILINDROS DE TRABAJO (3) CONECTADOS, HASTA QUE SE ESTABLECE UNA PRESION DE COMPENSACION PREDETERMINADA; Y DE UN DISPOSITIVO DE RETENCION QUE MANTIENE ABIERTA LA VALVULA DE COMPENSACION, CUANDO EN LA CAMARA DE LOS CILINDROS DE TRABAJO (3) CONECTADOS, EXISTE UNA PRESION QUE ESTA POR ENCIMA DE LA PRESION DE COMPENSACION.
ES521275A 1982-04-06 1983-04-06 Perfeccionamientos en un dispositivo para gobernar la carrera de un grupo de cilindros de un sistema de entibacion hidraulico. Expired ES8402386A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823212747 DE3212747A1 (de) 1982-04-06 1982-04-06 Einrichtung zur hubsteuerung einer zylinddergruppe eines hydraulischen ausbausystems, insbesondere zum setzen der stempel einer schreitausbaueinheit

Publications (2)

Publication Number Publication Date
ES521275A0 ES521275A0 (es) 1984-01-16
ES8402386A1 true ES8402386A1 (es) 1984-01-16

Family

ID=6160337

Family Applications (1)

Application Number Title Priority Date Filing Date
ES521275A Expired ES8402386A1 (es) 1982-04-06 1983-04-06 Perfeccionamientos en un dispositivo para gobernar la carrera de un grupo de cilindros de un sistema de entibacion hidraulico.

Country Status (7)

Country Link
US (1) US4572709A (es)
AU (1) AU558678B2 (es)
DE (1) DE3212747A1 (es)
ES (1) ES8402386A1 (es)
FR (1) FR2524545B1 (es)
GB (1) GB2118603B (es)
ZA (1) ZA832434B (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3404302C1 (de) * 1984-02-08 1985-06-05 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Steuervorrichtung fuer ein hydraulisches Schreitausbaugestell
DE3806833A1 (de) * 1988-03-03 1989-09-14 Hilti Ag Pulverkraftbetriebenes bolzensetzgeraet
GB2235234B (en) * 1989-12-13 1993-06-30 Meco Electronics Ltd Mine roof supports
GB9915309D0 (en) * 1999-06-30 1999-09-01 Lucas Ind Plc Valve
US6640636B1 (en) * 2002-05-20 2003-11-04 Kohji Toda Ultrasound radiating and receiving device
CN111094817B (zh) * 2017-09-21 2021-09-10 克斯美库股份有限公司 带有顺序阀的缸体装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1458672B1 (de) * 1951-01-28 1970-02-26 Becorit Grubenausbau Gmbh Steuerung für einen wandernden hydraulischen Strebausbau
GB918024A (en) * 1958-04-25 1963-02-13 Hedwig Beukenberg Staying apparatus for face conveyors
GB1023125A (en) * 1963-07-22 1966-03-16 Dowty Mining Equipment Ltd Mining apparatus
DE1249796B (es) * 1963-09-06 1967-09-14
GB1024167A (en) * 1964-02-14 1966-03-30 Dowty Mining Equipment Ltd Roof support assembly suitable for use in mines
GB1063455A (en) * 1964-05-15 1967-03-30 Dowty Mining Equipment Ltd Roof support assembly suitable for use in mines
GB1194139A (en) * 1967-10-21 1970-06-10 Gewerk Eisenhuette Westfalia Improvements in Hydraulically-Operated Supporting Devices for Mines
GB1228381A (es) * 1967-11-08 1971-04-15
DE1960807C3 (de) * 1969-12-04 1979-02-01 Hippel Geb. Weiss, Sophie Von, 7771 Oberstenweiler Schildausbaugestell
DE2749312C2 (de) * 1977-11-04 1984-12-20 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Steuereinrichtung mit Nachsetzautomatik für einen hydraulischen Stempelausbau
PL210760A1 (pl) * 1977-12-13 1979-09-24 Bochumer Eisen Heintzmann Uklad rozrzadu zaworowego przy przesuwnej ramownicy obudowy wyrobisk
DE2757885A1 (de) * 1977-12-24 1979-06-28 Thyssen Industrie Schildausbaugestell fuer den grubenausbau
DE2815919A1 (de) * 1978-04-13 1979-10-18 Thyssen Industrie Ueberdruckventil fuer hydraulische ausbauelemente des untertaegigen grubenbetriebs, vornehmlich fuer den steinkohlebergbau
DE2832964C2 (de) * 1978-07-27 1982-09-09 Thyssen Industrie Ag, 4300 Essen Überdruckventil, vornehmlich für hydraulische Schubkolbengetriebe von Ausbauelementen des untertägigen Grubenbetriebes
DE2914884A1 (de) * 1979-04-12 1980-10-30 Gewerk Eisenhuette Westfalia Einrichtung zum setzen hydraulischer grubenstempel mit hoher und gleichmaessiger setzkraft
US4279271A (en) * 1979-08-31 1981-07-21 Mac Valves, Inc. Pressure regulator and flow control valve with pre-exhaust

Also Published As

Publication number Publication date
AU558678B2 (en) 1987-02-05
ZA832434B (en) 1983-12-28
FR2524545B1 (fr) 1987-03-06
DE3212747C2 (es) 1992-07-16
GB2118603B (en) 1985-10-09
DE3212747A1 (de) 1983-10-06
AU1318383A (en) 1983-10-13
ES521275A0 (es) 1984-01-16
US4572709A (en) 1986-02-25
GB2118603A (en) 1983-11-02
FR2524545A1 (fr) 1983-10-07
GB8309100D0 (en) 1983-05-11

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010402